Hawking, Lucy  <br/><br/>
George's Cosmic Treasure Hunt : 
Lucy Hawking and Stephen Hawking 
 - London:  Penguin Random House,  c2009 
 - 299 p. 
<br/><br/><label>ISBN: </label>9780552559614 
<br/><br/><label>Dewey Class. No.: </label>509.05   / HAW/G